package com.atguigu.controller;


import com.alibaba.dubbo.config.annotation.Reference;
import com.atguigu.constant.MessageConstant;
import com.atguigu.entity.Result;
import com.atguigu.pojo.Setmeal;
import com.atguigu.service.MemberService;
import com.atguigu.service.OrderService;
import com.atguigu.service.ReportBizService;
import com.atguigu.service.SetmealService;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    MemberService memberService;
    @Reference
    OrderService orderService;
    @Reference
    ReportBizService reportBizService;



    @RequestMapping("/getMemberReport.do")
    public Result getMemberReport(){
        Map map = new HashMap();
        List<String> months = new ArrayList<>();
        Calendar calendar = Calendar.getInstance(); //获取日历对象
        calendar.add(Calendar.MONTH,-12);
        for (int i = 0; i <12 ; i++) {
            calendar.add(Calendar.MONTH,1);
            Date time = calendar.getTime();
            String data = new SimpleDateFormat("yyyy-MM").format(time);
            months.add(data);
        }
        List<Integer> memberCount = memberService.getMemberCount(months);//根据月份检索前面几个月的会员数量
        map.put("months",months);
        map.put("memberCount",memberCount);
        return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
    }

    @RequestMapping("/getSetmealReport.do")
    public Result getSetmealReport(){
        Map map = new HashMap();
         List<Map> setmealCount = orderService.getSetmealOrderInfo();
         List<String> setmealNames = new ArrayList<>();
        for (Map map1 : setmealCount) {
            String setmealName = map1.get("name").toString();
            setmealNames.add(setmealName);
        }

        map.put("setmealNames",setmealNames);
        map.put("setmealCount",setmealCount);
        return  new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map) ;
    }

    @RequestMapping("/getBusinessReportData.do")
    public  Result getBusinessReportData(){
      Map map = reportBizService.getBusinessReportData();
      return  new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
    }

    @RequestMapping("/exportBusinessReport.do")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            //远程调用报表服务获取报表数据
            Map<String, Object> result = reportBizService.getBusinessReportData();

            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //获得Excel模板文件绝对路径
            //file.separator这个代表系统目录中的间隔符，说白了就是斜线。
            String temlateRealPath = request.getSession().getServletContext().getRealPath("template") +
                    File.separator + "report_template.xlsx";

            //读取模板文件创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
            XSSFSheet sheet = workbook.getSheetAt(0);

            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日出游数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周出游数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月出游数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //通过输出流进行文件下载
            ServletOutputStream out = response.getOutputStream();
            // 下载的数据类型（excel类型）
            response.setContentType("application/vnd.ms-excel");
            // 设置下载形式(通过附件的形式下载)
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");
            workbook.write(out);

            out.flush();
            out.close();
            workbook.close();

            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL, null);
        }


    }
}
